diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 04c6550ea..bfd812bd6 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -355,7 +355,7 @@ static ngx_command_t  ngx_http_core_commands[] = {
       NULL },
 
     { ngx_string("client_body_in_file_only"),
-      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
       ngx_conf_set_enum_slot,
       NGX_HTTP_LOC_CONF_OFFSET,
       offsetof(ngx_http_core_loc_conf_t, client_body_in_file_only),